Broken ltsp

[François BARILLON]

Hello, 

I've got a problem with an Edubuntu server.

Last week thin clients booted fine.

This morning I tried to install x11vnc on the thin client chroot.

Now it's impossible to login on a thin client (X or console mode).

Even the server has problems when I click on reboot or disconnect
(obliged to ctrl-alt-f1 and sudo reboot).

I tried to :
sudo ltsp-update-sshkeys (no special answer)

to remove /opt and :
sudo ltsp-build-client

Does anyone hae an idea ?

François